To that high alert for law enforcement and new warnings about two armed and dangerous white supremacists targeting police. Colorado authorities issuing a strong warning overnight and abc's pierre thomas has the latest. Good morning, pierre. Reporter: Good morning, robin. Today here in texas and across the country, some police are concerned that thugs have declared open season on public officials. Officer safety bulletin, extreme caution. Reporter: This morning colorado authorities are issuing an urgent bulletin warning police everywhere to be on the lookout for two suspected members of 211. The men, james lohr and thomas guolee are thought to be associates of evan ebel, another member of 211 who police believe assassinated colorado prisons chief thomas clements on march 19th. Show violent tendencies and should be considered armed and dangerous. This is reference an active homicide. Reporter: While they're not officially considered suspects in the prison chief's death they are said to be in contact with him days before the shooting. It came hours after eugene crum was executed in broad daylight at point-blank range as he sat in his car on lunch break. Shots fired involving an officer. Get me a medic down here. Reporter: This morning the 37-year-old suspect, melvin maynard is in the hospital after a gun battle. Motive unknown. Another small town in tears. When high-profile crimes are committed, there's a tendency for people to want to copy them. Reporter: So today security will be tight at a service honoring that slain prosecutor and his wife.

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